Long Range Petrol tank access issue

These are the pump photos.
I'm hoping you guys can tell me whether this is the stock one! I think it is.
Sender and pump is basically a single unit.

Houston, we have a problem...........

you have 4 outlets on your tank
big bugga
one next to it
little airline fitting on outside edge
and small one away from the others
Attachment 67621

and the 2 on the pump itself


state the obvious first
1 x line is for your fuel to carby

then there should be
1 x fuel return (to stop flooding )
as the pump will pump more fuel than what is required (you will use more fuel at low gears than in top gear, but the pump does not speed up to match what is needed - only 1 speed on the pump)

and
1 x Vapour line - expansion - so the air can escape when your filling up the tank


I will have a think tonight about what the other ones are for

that looks like the one out of the main tank...........

so they have used that

I figured out the fuel pump line, return line, breather line and fill line.
But, there's a third line that joins the far end top hole of the tank. Do you know what's that for?
I'm guessing it has something to do with the charcoal canister return line or something?!
Return line is the one at the very top of the tank.
But, it joins a black filter like thing away from the tank.
I wonder what's that filter look like thing is for.,

Quote:

---

Originally Posted by dom14

I haven't been able to locate a one yet. The genuine one on the internet says $800+.
If you know where to locate aftermarket pumps, do let me know.
If I decide to keep the original pump setup, I think it's good idea to keep a spare one.

---

Start with the usual aftermarket suppliers and also try Ashdowns-Ingrams.

Quote:

---

Originally Posted by dom14

Unplanned usually, but mostly around central and north.
I haven't done the Kakadu National Park yet. I'm thinking about going there in about a month, hopefully. :)
I go for half planned treks and end up going to a different location.
The troll is getting old and has been giving me a fair bit or a cry since last year.
I haven't been to Tassie either. So, hoping to go there as well. Too cold there right now I reckon.

---

Sounds great…… I wish I could travel more.

Quote:

---

Originally Posted by dom14

Yes, that's the only gauge there, and it doesn't start moving until quarter tank or so, and then suddenly moves too much(from memory). I've never bothered to even look at it.

I got the tank and pump out. I'm just editing the pictures.

---

More then likely you won't be able to do anything about that. With the sender out you can check the operation of the float and arm. You will more then likely find that at full upwards travel of the arm the float is only sitting in about quarter of the tank.

Are there any markings (spec) on the old pump?

When I got my tank, the bung that sits solo at the end of the tank just had a bit of hose with a bolt in it. I thought perhaps an extra breather, but just settled for the top ones connected. If I get time over the weekend I'll climb under it and have a geez.

As for relying on fuel/distance traveled Dom, while I do the same to a degree, I wonder if it would be worth finding an aftermarket sender and gauge to suit. Reason being, when your off road doing sand work for instance, your fuel usage will skyrocket. Not to mention if you have a hole in your tank, the gauge may be an early warning sign.

Quote:

---

Originally Posted by Yendor

More then likely you won't be able to do anything about that. With the sender out you can check the operation of the float and arm. You will more then likely find that at full upwards travel of the arm the float is only sitting in about quarter of the tank.

---

The variable resistor strip is actually dipped in petrol. Apparently petrol doesn't cause the contact of metal tab & resistor any weaker.
But, I reckon it's bound to weaken the contact over time.

Apparently electric sparks is not a concern for having live electricity across petrol?!

I wondered why they haven't designed the electric part of the sender in a sealed compartment without any touch with petrol!
They had no issues doing that with the Oil Pressure Sender.

Quote:

---

Are there any markings (spec) on the old pump?

---

None. I guess I would have to look into the the manuals to find out.
If you come across the specs, pls do post me.

Quote:

---

Originally Posted by Throbbinhood

When I got my tank, the bung that sits solo at the end of the tank just had a bit of hose with a bolt in it. I thought perhaps an extra breather, but just settled for the top ones connected. If I get time over the weekend I'll climb under it and have a geez.

As for relying on fuel/distance traveled Dom, while I do the same to a degree, I wonder if it would be worth finding an aftermarket sender and gauge to suit. Reason being, when your off road doing sand work for instance, your fuel usage will skyrocket. Not to mention if you have a hole in your tank, the gauge may be an early warning sign.

---

Yes, you have a very valid point there mate.
You are right.
Since, I've gone to all the trouble of pulling out the tank and the pump, I should get the gauge sorted as well.
Thanks for the tip. :)
I'm thinking experimenting with the existing sender while the tank is out.
I'm thinking connecting the wires and fill it up with petrol and play with the sender float lever.

Quote:

---

Originally Posted by dom14

I'm thinking connecting the wires and fill it up with petrol and play with the sender float lever.

---

Let me know how you go. If you get it sorted, might seek your assistance and do the same haha.

Quote:

---

Originally Posted by Throbbinhood

Let me know how you go. If you get it sorted, might seek your assistance and do the same haha.

---

Yeah, the gauge is important. I wanted to ignore it, 'cos I've been fed up with the fuel pumping issue lately.
Now, all will be sorted out. i'll keep you posted.